72691348164 has 24 divisors (see below), whose sum is σ = 169623770400. Its totient is φ = 24228931584.

The previous prime is 72691348141. The next prime is 72691348181. The reversal of 72691348164 is 46184319627.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19012 + ... + 381764.

It is an arithmetic number, because the mean of its divisors is an integer number (7067657100).

Almost surely, 2^72691348164 is an apocalyptic number.

It is an amenable number.

72691348164 is an abundant number, since it is smaller than the sum of its proper divisors (96932422236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72691348164 is a wasteful number, since it uses less digits than its factorization.

72691348164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379459 (or 379457 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The spelling of 72691348164 in words is "seventy-two billion, six hundred ninety-one million, three hundred forty-eight thousand, one hundred sixty-four".